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Mullite ceramic with tough whisker frame and method
The invention provides mullite ceramic with a tough whisker frame and a method, and the method comprises the following steps: step 1, adding alumina sol into deionized water to obtain water-containingalumina sol, and then adding silica sol into the water-containing alumina sol to obtain mullite sol; 2, infiltrating the mullite sol into a mullite whisker frame, and drying the obtained mixture to obtain a mullite ceramic sample; and 3, carrying out heat treatment on the mullite ceramic sample to obtain the mullite ceramic with the tough whisker frame, wherein the obtained mullite ceramic has the characteristics of high whisker content and uniform distribution. The preparation method has the advantages that the content of whiskers in the mullite ceramic can be greatly increased, specifically, the content of the whiskers can be greatly increased and can reach 69.5 wt%-90wt% through the mullite whisker frame structure, the whiskers are uniformly dispersed in a matrix, and the performance loss caused by whisker agglomeration is powerfully avoided.
本发明提供一种晶须框架强韧的莫来石陶瓷及方法，所述方法包括以下步骤：步骤1，先将铝溶胶加入到去离子水中，得到含水铝溶胶，再将硅溶胶加入到含水铝溶胶中，得到莫来石溶胶；步骤2，先将莫来石溶胶浸渗到莫来石晶须框架中，再将所得混合物干燥，得到莫来石陶瓷试样；步骤3，将莫来石陶瓷试样进行热处理得到晶须框架强韧的莫来石陶瓷，得到的莫来石陶瓷具有晶须含量高且分布均匀的特点。本发明优势在于可以大幅提高莫来石陶瓷中的晶须含量，具体地，莫来石晶须框架结构可以大幅增加晶须含量，可达到69.5wt％～90wt％)，并且晶须在基体中分散均匀，有力避免了因晶须团聚造成的性能损失。
Mullite ceramic with tough whisker frame and method
The invention provides mullite ceramic with a tough whisker frame and a method, and the method comprises the following steps: step 1, adding alumina sol into deionized water to obtain water-containingalumina sol, and then adding silica sol into the water-containing alumina sol to obtain mullite sol; 2, infiltrating the mullite sol into a mullite whisker frame, and drying the obtained mixture to obtain a mullite ceramic sample; and 3, carrying out heat treatment on the mullite ceramic sample to obtain the mullite ceramic with the tough whisker frame, wherein the obtained mullite ceramic has the characteristics of high whisker content and uniform distribution. The preparation method has the advantages that the content of whiskers in the mullite ceramic can be greatly increased, specifically, the content of the whiskers can be greatly increased and can reach 69.5 wt%-90wt% through the mullite whisker frame structure, the whiskers are uniformly dispersed in a matrix, and the performance loss caused by whisker agglomeration is powerfully avoided.
本发明提供一种晶须框架强韧的莫来石陶瓷及方法，所述方法包括以下步骤：步骤1，先将铝溶胶加入到去离子水中，得到含水铝溶胶，再将硅溶胶加入到含水铝溶胶中，得到莫来石溶胶；步骤2，先将莫来石溶胶浸渗到莫来石晶须框架中，再将所得混合物干燥，得到莫来石陶瓷试样；步骤3，将莫来石陶瓷试样进行热处理得到晶须框架强韧的莫来石陶瓷，得到的莫来石陶瓷具有晶须含量高且分布均匀的特点。本发明优势在于可以大幅提高莫来石陶瓷中的晶须含量，具体地，莫来石晶须框架结构可以大幅增加晶须含量，可达到69.5wt％～90wt％)，并且晶须在基体中分散均匀，有力避免了因晶须团聚造成的性能损失。
Mullite ceramic with tough whisker frame and method
一种晶须框架强韧的莫来石陶瓷及方法
ZENG DEJUN (author) / GUO CHENHAO (author) / SANG KEZHENG (author) / SONG XIAOHENG (author)
2020-08-14
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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